CN105372463B - Capacitance grading formula compact impulse voltage generator - Google Patents
Capacitance grading formula compact impulse voltage generator Download PDFInfo
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- CN105372463B CN105372463B CN201510831017.6A CN201510831017A CN105372463B CN 105372463 B CN105372463 B CN 105372463B CN 201510831017 A CN201510831017 A CN 201510831017A CN 105372463 B CN105372463 B CN 105372463B
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- 239000003990 capacitor Substances 0.000 claims abstract description 132
- 238000007789 sealing Methods 0.000 claims abstract description 58
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 39
- 239000010703 silicon Substances 0.000 claims abstract description 39
- 239000012212 insulator Substances 0.000 claims abstract description 35
- 230000005611 electricity Effects 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 6
- 235000017899 Spathodea campanulata Nutrition 0.000 claims description 5
- 210000001367 artery Anatomy 0.000 claims description 4
- 210000003462 vein Anatomy 0.000 claims description 4
- 230000005405 multipole Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 description 25
- 239000007789 gas Substances 0.000 description 14
- 238000013461 design Methods 0.000 description 13
- 229910018503 SF6 Inorganic materials 0.000 description 6
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 5
- 239000011810 insulating material Substances 0.000 description 4
- 229960000909 sulfur hexafluoride Drugs 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000012491 analyte Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- SBYXRAKIOMOBFF-UHFFFAOYSA-N copper tungsten Chemical compound [Cu].[W] SBYXRAKIOMOBFF-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000006187 pill Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Generation Of Surge Voltage And Current (AREA)
Abstract
The invention discloses a kind of capacitance grading formula compact impulse voltage generator, including sealing shell, curved cover plate, disc insulator and lead-out wire, and it is arranged on the charging transformer in sealing shell, charging capacitor, first high voltage silicon rectifier stack, second high voltage silicon rectifier stack, first front pulse capacitor, second front pulse capacitor, first front end multi-ignition ball gap, second front end multi-ignition ball gap, first backend pulse capacitor, second backend pulse capacitor, first rear end multi-ignition ball gap, second rear end multi-ignition ball gap, first wave front resistance, second wave front resistance, 3rd wave front resistance, 4th wave front resistance, first wave terminal resistance, second wave terminal resistance, 3rd wave terminal resistance, 4th wave terminal resistance, first charging resistor, second charging resistor, 3rd charging resistor and the 4th charging resistor.The present invention is effectively utilized sealing shell inner space, reduce further the size requirement to sealing shell.
Description
Technical field
The present invention relates to high-voltage test and insulation technology field, impacts electricity in particular to a kind of capacitance grading formula compact
Press generator.
Background technology
In the prior art, impulse voltage generator typically uses open type tower structure, and impact test voltage is through too high
Press exit and the output of aerial bus.But this generating means because using the poor air of insulating properties as major insulation medium,
Bulky, split cost of transportation is higher, and field erected workload is big, is not easy to the insulation characterisitic experiment of transformer scene
Development.Further, since device is exposed in air, had a great influence by external environments such as air pressure and humitures, easily occur putting certainly
Electrical phenomena, less stable.
In view of the above problems, publication No. is to propose one kind in CN103308736A Chinese patent《It is small-sized integrated steep
Forward position pulse generating unit》, including fuel tank and the oil immersed type surge voltage hair that fuel tank internal is suspended to by insulating support oblique pull
Raw device.The program reduces the volume of device to a certain extent, avoids influence of the external environment to device performance.But oil immersion
Formula designs the weight that experimental rig has also been significantly greatly increased；Moreover, single-ended line-outgoing type capacitor also limit the electricity of capacitor body
Grade is pressed, causes the component numbers such as capacitor needed for experimental rig to increase, mounting complexity increase.
Publication No. is to propose one kind in CN104459235 Chinese patent《Compact closed gas insulation impact electricity
Press generator》, the impulse voltage generator using high insulating gas as major insulation medium, significantly reduce experimental rig
Volume and weight.Because percussion mechanism high-pressure side output voltage is very high, and high-pressure side pulse and casing insulation are apart from limited, need
Substantial amounts of insulating part is installed, and the internal volume of experimental rig is smaller, can not use hanging device, therefore internal frame insulation branch
The installation of the device such as frame and shielding insulation part is fixed difficult；Moreover, moisture is had after longtime running enters inside, internal gas is adopted
Dried with cyclic drying scheme, but because the moisture diffusion in insulating materials is slower, cause gas circulation drying to insulate frame
The drying effect of support and high-tension shielding insulating part is poor.
The content of the invention
Present invention aim to provide a kind of capacitance grading formula compact impulse voltage generator, surge voltage hair
Raw device uses full-enclosed structure, inside fills high insulating property gas as major insulation medium, and shortens interelectrode distance, drops
The low requirement to the component creep age distance such as electric capacity and insulator, so as to effectively reduce the volume and weight of device；Meanwhile according to
According to grading design scheme is used during percussion mechanism voltage output the characteristics of each step voltage difference, effectively using empty inside generator
Between, it is not only able to reduce the usage quantity of inside insulation and support, further reduces the volume and weight of device；Propping up
The fixed aspect of support, using the sub- supporting construction of double ended insulation, has been continuously increased shock resistance, also improves the production effect of experimental rig
Rate, while prevent the situation of the inner insulation material moisture absorption to occur.
In order to achieve this, the capacitance grading formula compact impulse voltage generator designed by the present invention, it includes sealing
Shell, curved cover plate, disc insulator and lead-out wire, and be arranged in sealing shell charging transformer, charging capacitor,
One high voltage silicon rectifier stack, the second high voltage silicon rectifier stack, the first front pulse capacitor, the second front pulse capacitor, the more limits in the first front end
Fireball gap, the second front end multi-ignition ball gap, the first backend pulse capacitor, the second backend pulse capacitor, the first rear end are more
Limit fireball gap, the second rear end multi-ignition ball gap, the first wave front resistance, the second wave front resistance, the 3rd wave front resistance, the 4th ripple
Head resistance, the first wave terminal resistance, the second wave terminal resistance, the 3rd wave terminal resistance, the 4th wave terminal resistance, the first charging resistor, second
Charging resistor, the 3rd charging resistor and the 4th charging resistor；
Wherein, the sealing shell is provided with air-filled pore, one end sealing installation curved cover plate of sealing shell, sealing shell
Other end sealing installation disc insulator, the disc insulator is provided with cable hole, and sealing shell is grounded, the curved cover plate
It is provided with wiring terminal box；
The charging transformer is arranged on one end of sealing shell, and the secondary one end of charging transformer is connected by charging capacitor
The positive pole of the first high voltage silicon rectifier stack, the terminals of the primary access wiring terminal box of charging transformer are connect, the first high voltage silicon rectifier stack is born
Pole connects one end of the first charging resistor, and the other end of the first charging resistor connects one end of the second charging resistor, the second charging
The other end of resistance connects one end of the 3rd charging resistor, and the other end of the 3rd charging resistor connects the one of the 4th charging resistor
End, the other end of the 4th charging resistor connect one end of the second rear end multi-ignition ball gap, the secondary other end of charging transformer
One end of the first wave front resistance is connected, the other end of the first wave front resistance connects one end of the first wave terminal resistance, the first wave rear electricity
The other end of resistance connects one end of the second wave front resistance, and the other end of the second wave front resistance connects one end of the second wave terminal resistance,
The other end of second wave terminal resistance connects one end of the 3rd wave front resistance, and the other end of the 3rd wave front resistance connects the 3rd wave rear electricity
One end of resistance, the other end of the 3rd wave terminal resistance connect one end of the 4th wave front resistance, the other end connection of the 4th wave front resistance
One end of 4th wave terminal resistance, the other end of the other end the second rear end multi-ignition ball gap of connection of the 4th wave terminal resistance, second
The other end of rear end multi-ignition ball gap is also associated with lead-out wire, and lead-out wire stretches out sealing through the cable hole on disc insulator
Outside shell；
The positive pole of negative pole the first high voltage silicon rectifier stack of connection of second high voltage silicon rectifier stack, the plus earth of the second high voltage silicon rectifier stack,
The first front pulse capacitor, the first charging are connected between the other end of the other end of first charging resistor and the first wave front resistance
Connect the corresponding both ends of the first front end multi-ignition ball gap between the other end of resistance and the other end of the first wave terminal resistance, second
The second front pulse capacitor, the second charging resistor are connected between the other end of the other end of charging resistor and the second wave front resistance
The other end and the other end of the second wave terminal resistance between connect the corresponding both ends of the second front end multi-ignition ball gap, the 3rd charging
Connect the first backend pulse capacitor between the other end of the other end of resistance and the 3rd wave front resistance, the 3rd charging resistor it is another
The corresponding both ends of the first rear end multi-ignition ball gap, the 4th charging resistor are connected between one end and the other end of the 3rd wave terminal resistance
The other end and the 4th wave front resistance the other end between connect the second backend pulse capacitor.
In above-mentioned technical proposal, it also includes multiple supporting insulators, the charging capacitor, the second high voltage silicon rectifier stack, first
Front pulse capacitor, the second front pulse capacitor, the first front end multi-ignition ball gap, the second front end multi-ignition ball gap,
First backend pulse capacitor, the second backend pulse capacitor, the first rear end multi-ignition ball gap and the second rear end multi-ignition
Ball gap passes through the inner bottom surface of corresponding supporting insulator fixed connection and sealing shell.
Capacitance between the first front pulse capacitor and the second front pulse capacitor is equal, and described first
Capacitance between backend pulse capacitor and the second backend pulse capacitor is equal, the first front pulse capacitor
Capacitance is 2~3 times of the capacitance of the first backend pulse capacitor.
Sphere gap between the first front end multi-ignition ball gap and the second front end multi-ignition ball gap is equal, and described
Sphere gap between one rear end multi-ignition ball gap and the second rear end multi-ignition ball gap is equal, second rear end multi-ignition
The sphere gap of ball gap is 1.5~2 times of the sphere gap of the first front end multi-ignition ball gap.
Beneficial effects of the present invention：
Filling high insulating property gas (sulfur hexafluoride), is reduced to component and insulation material in the sealing shell of the present invention
Material climbs electric and each interelectrode insulation distance along face；Meanwhile according to each step voltage during impulse voltage generator ignition discharge
The characteristics of different, employ the design of hierarchy, i.e., low-voltage region using Large Copacity impulse capacitor and it is small between
Gap multi-ignition ball gap, and low capacity impulse capacitor and wide arc gap ignition ball gap are used in high-pressure area, make shell and first device
Insulation distance between part is effectively utilized sealing shell inner space, further reduced according to the stepped distribution of voltage class
Size requirement to sealing shell is (impact that the present invention designs compared with publication No. is CN104459235 scheme, without peace
High-voltage isulation barricade is filled, improves operating efficiency, the space of barricade installation support member is also saved, avoids because of barricade
The insulation made moist and occurred declines problem).In addition, the component in the present invention is double using nonhygroscopic supporting insulator progress
End support, and insulator is installed in bottom surface, not only avoids and the problem of difficult is vacantly lifted in component installation process, also carry
The high shock resistance of experimental rig.
Brief description of the drawings
Fig. 1 is the electrical schematic diagram of the present invention；
Fig. 2 is the main structure diagram of the present invention；
Fig. 3 is the overlooking the structure diagram of the present invention；
Fig. 4 is the sectional view (increase metallic support) that the first front pulse capacitor is installed in the present invention；
Fig. 5 is the sectional view (increase metallic support) that the first backend pulse capacitor is installed in the present invention；
Wherein, 1-sealing shell, 2-curved cover plate, 3-disc insulator, 3.1-cable hole, 4-charging transformer,
5-charging capacitor, the 6.1-the first high voltage silicon rectifier stack, the 6.2-the second high voltage silicon rectifier stack, the 7.1-the first front pulse capacitor, 7.2-
Second front pulse capacitor, the 8.1-the first front end multi-ignition ball gap, the 8.2-the second front end multi-ignition ball gap, 9.1-
First backend pulse capacitor, the 9.2-the second backend pulse capacitor, the 10.1-the first rear end multi-ignition ball gap, 10.2-
Second rear end multi-ignition ball gap, the 11.1-the first wave front resistance, the 11.2-the second wave front resistance, the 11.3-the three wave head electricity
Resistance, the 11.4-the four wave front resistance, the 12.1-the first wave terminal resistance, the 12.2-the second wave terminal resistance, the 12.3-the three wave rear electricity
Resistance, the 12.4-the four wave terminal resistance, the 13.1-the first charging resistor, the 13.2-the second charging resistor, the 13.3-the three charging electricity
Resistance, the 13.4-the four charging resistor, 14-supporting insulator, 15-lead-out wire, 16-air-filled pore, 17-metallic support, 18-
Insulating support, 19-wiring terminal box.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail：
One embodiment provided by the invention is that a kind of the totally-enclosed, interior of hierarchy design fills the tight of sulfur hexafluoride gas
The type closed gas that gathers insulation impulse voltage generator.The impulse voltage generator is in sulfur hexafluoride gas as major insulation medium
On the basis of structure design, designed according to each step voltage using hierarchy, the insulation distance between shell and component is installed
The stepped distribution of voltage class, efficiently utilizes sealing shell inner space；Meanwhile save barricade installation support member
Space, reduce further to the requirement of the size of sealing shell.
In addition, the component being longitudinally arranged in this example carries out both-end support using supporting insulator, and insulator is equal
Installed in bottom surface, not only avoid in component installation process and vacantly lift the problem of difficult, also improve the anti-of experimental rig
Shake ability.Moreover, this configuration avoids the use of the insulating materials such as insulating board and epoxy resin, improve experimental rig and prevent
The ability of damp, anti-SF6 gases analyte corrosion.
Capacitance grading formula compact impulse voltage generator as shown in Fig. 1~5, it includes sealing shell 1, curved cover plate
2nd, disc insulator 3 and lead-out wire 15, and be arranged in sealing shell 1 charging transformer 4, charging capacitor 5, the first high pressure
Silicon stack 6.1, the second high voltage silicon rectifier stack 6.2, the first front pulse capacitor 7.1, the second front pulse capacitor 7.2, the first front end
Multi-ignition ball gap 8.1, the second front end multi-ignition ball gap 8.2, the first backend pulse capacitor 9.1, the second backend pulse electricity
Container 9.2, the first rear end multi-ignition ball gap 10.1, the second rear end multi-ignition ball gap 10.2, the first wave front resistance 11.1,
Two wave front resistances 11.2, the 3rd wave front resistance 11.3, the 4th wave front resistance 11.4, the first wave terminal resistance 12.1, the second wave rear electricity
Hinder the 12.2, the 3rd wave terminal resistance 12.3, the 4th wave terminal resistance 12.4, the first charging resistor 13.1, the second charging resistor 13.2, the
Three charging resistors 13.3 and the 4th charging resistor 13.4；
Wherein, the sealing shell 1 is provided with air-filled pore 16, and arc is installed in one end of sealing shell 1 by flange seal
Cover plate 2, the other end sealing installation disc insulator 3 of sealing shell 1, the disc insulator 3 are provided with cable hole 3.1, sealed
Shell 1 is grounded, and the curved cover plate 2 is provided with wiring terminal box 19；
The charging transformer 4 is arranged on one end of sealing shell 1 by insulating support 18,4 levels of charging transformer
One end connects the positive pole of the first high voltage silicon rectifier stack 6.1, the primary access wiring terminal box 19 of charging transformer 4 by charging capacitor 5
Terminals (the primary wiring terminal box 19 that passes through of charging transformer 4 connects external power source, civil power 380V or 220V), first is high
The negative pole of silicon stack 6.1 is pressed to connect one end of the first charging resistor 13.1, the other end connection second of the first charging resistor 13.1 is filled
One end of resistance 13.2, the other end of the second charging resistor 13.2 connect one end of the 3rd charging resistor 13.3, the 3rd charging
The other end of resistance 13.3 connects one end of the 4th charging resistor 13.4, after the other end connection second of the 4th charging resistor 13.4
One end of multi-ignition ball gap 10.2 is held, the other end of 4 levels of charging transformer connects one end of the first wave front resistance 11.1, the
The other end of one wave front resistance 11.1 connects one end of the first wave terminal resistance 12.1, the other end connection of the first wave terminal resistance 12.1
One end of second wave front resistance 11.2, the other end of the second wave front resistance 11.2 connect one end of the second wave terminal resistance 12.2, the
The other end of two wave terminal resistances 12.2 connects one end of the 3rd wave front resistance 11.3, the other end connection of the 3rd wave front resistance 11.3
One end of 3rd wave terminal resistance 12.3, the other end of the 3rd wave terminal resistance 12.3 connect one end of the 4th wave front resistance 11.4, the
The other end of four wave front resistances 11.4 connects one end of the 4th wave terminal resistance 12.4, the other end connection of the 4th wave terminal resistance 12.4
The other end of second rear end multi-ignition ball gap 10.2, the other end of the second rear end multi-ignition ball gap 10.2 are also associated with drawing
Line 15, lead-out wire 15 are stretched out outside sealing shell 1 through the cable hole 3.1 on disc insulator 3；
The negative pole of second high voltage silicon rectifier stack 6.2 connects the positive pole of the first high voltage silicon rectifier stack 6.1, the second high voltage silicon rectifier stack 6.2
The first front end arteries and veins is connected between the other end of plus earth, the other end of the first charging resistor 13.1 and the first wave front resistance 11.1
Capacitor 7.1 is rushed, before connecting first between the other end of the first charging resistor 13.1 and the other end of the first wave terminal resistance 12.1
Both ends corresponding to end multi-ignition ball gap 8.1, the other end of the second charging resistor 13.2 are another with the second wave front resistance 11.2
Connect the second front pulse capacitor 7.2 between end, the other end of the second charging resistor 13.2 and the second wave terminal resistance 12.2
Both ends corresponding to the second front end multi-ignition ball gap 8.2, the other end of the 3rd charging resistor 13.3 and are connected between the other end
The first backend pulse capacitor 9.1, the other end of the 3rd charging resistor 13.3 are connected between the other end of three wave front resistances 11.3
10.1 corresponding both ends of the first rear end multi-ignition ball gap, the 4th charging are connected between the other end of the 3rd wave terminal resistance 12.3
The second backend pulse capacitor 9.2 is connected between the other end of the other end of resistance 13.4 and the 4th wave front resistance 11.4.
In above-mentioned technical proposal, it also includes multiple supporting insulators 14, the charging capacitor 5, the second high voltage silicon rectifier stack
6.2nd, the first front pulse capacitor 7.1, the second front pulse capacitor 7.2, the first front end multi-ignition ball gap 8.1, second
Front end multi-ignition ball gap 8.2, the first backend pulse capacitor 9.1, the second backend pulse capacitor 9.2, the first rear end multipole
The rear end multi-ignition ball gap 10.2 of ignition ball gap 10.1 and second by the corresponding fixed connection and sealing of supporting insulator 14 outside
The inner bottom surface of shell 1.Each supporting insulator 14 is both-end supporting insulator.
In above-mentioned technical proposal, between the first front pulse capacitor 7.1 and the second front pulse capacitor 7.2
Capacitance is equal, the capacitance phase between the first backend pulse capacitor 9.1 and the second backend pulse capacitor 9.2
Deng the capacitance of the first front pulse capacitor 7.1 is the 2~3 of the capacitance of the first backend pulse capacitor 9.1
Times, i.e. the first front pulse capacitor 7.1 and the second front pulse capacitor 7.2 are Large Copacity impulse capacitor, after first
The end backend pulse capacitor 9.2 of impulse capacitor 9.1 and second is low capacity impulse capacitor, the first front pulse capacitor
7.1st, the voltage of the second front pulse capacitor 7.2, the first backend pulse capacitor 9.1 and the second backend pulse capacitor 9.2
Grade all same.
In above-mentioned technical proposal, the first front end multi-ignition ball gap 8.1 and the second front end multi-ignition ball gap 8.2 it
Between sphere gap it is equal, the ball between the first rear end multi-ignition ball gap 10.1 and the second rear end multi-ignition ball gap 10.2
Gap is equal, and the sphere gap of the second rear end multi-ignition ball gap 10.2 is between the ball of the first front end multi-ignition ball gap 8.1
1.5~2 times of gap, i.e. the first front end multi-ignition ball gap 8.1 and the second front end multi-ignition ball gap 8.2 are small―gap suture multipole
Ignition ball gap, its sphere gap are 10 millimeters, the first rear end multi-ignition ball gap 10.1 and the second rear end multi-ignition ball gap 10.2
It is wide arc gap multi-ignition ball gap, sphere gap is 15 millimeters.
In above-mentioned technical proposal, the longitudinal horizontal of the first high voltage silicon rectifier stack 6.1 arrangement, second high voltage silicon rectifier stack 6.2 erects
To arrangement, before the charging transformer 4, charging capacitor 5, the second high voltage silicon rectifier stack 6.2, the first front pulse capacitor 7.1, first
Hold multi-ignition ball gap 8.1, the second front pulse capacitor 7.2, the second front end multi-ignition ball gap 8.2, the first backend pulse
Capacitor 9.1, the first rear end multi-ignition ball gap 10.1, the second backend pulse capacitor 9.2, the second rear end multi-ignition ball gap
10.2 are sequentially arranged between one end of sealing shell 1 and the other end.
In above-mentioned technical proposal, the charging capacitor 5, the first high voltage silicon rectifier stack 6.1, the second high voltage silicon rectifier stack 6.2, the first front end
Impulse capacitor 7.1, the second front pulse capacitor 7.2, the first front end multi-ignition ball gap 8.1, the second front end multi-ignition
Ball gap 8.2, the first backend pulse capacitor 9.1, the second backend pulse capacitor 9.2, the first rear end multi-ignition ball gap 10.1,
Bottom surface, top surface and the side of second rear end multi-ignition ball gap 10.2 and sealing shell 1 are respectively provided with gap.
In above-mentioned technical proposal, first wave front resistance 11.1, the second wave front resistance 11.2, the 3rd wave front resistance
11.3rd, the 4th wave front resistance 11.4, the first wave terminal resistance 12.1, the second wave terminal resistance 12.2, the 3rd wave terminal resistance the 12.3, the 4th
Wave terminal resistance 12.4, the first charging resistor 13.1, the second charging resistor 13.2, the 3rd charging resistor 13.3, the 4th charging resistor
13.4 are respectively provided with gap with bottom surface, top surface and the side of sealing shell 1.
In above-mentioned technical proposal, the sealing shell 1 is cylindric sealing shell, and non-rectangular configuration, the arc covers
Plate 2 is circular arc cover plate, and nonplanar structure, improves pressure in the maximal destruction of high-pressure test device；Disc insulator 3
Model determines according to the maximum output voltage of surge voltage generating means.
In above-mentioned technical proposal, first wave front resistance 11.1, the second wave front resistance 11.2, the 3rd wave front resistance
11.3rd, the 4th wave front resistance 11.4, the first wave terminal resistance 12.1, the second wave terminal resistance 12.2, the 3rd wave terminal resistance 12.3 and
Four wave terminal resistances 12.4 are cylindric noninductive resistance, and first charging resistor 13.1, the second charging resistor the 13.2, the 3rd are filled
The charging resistor 13.4 of resistance 13.3 and the 4th is rectangular-shaped resistance.
In above-mentioned technical proposal, the air-filled pore 16 is arranged on the top of sealing shell 1.This set form so that dress
The not used time is put, prevents from touching air-filled pore 16 by mistake.
In above-mentioned technical proposal, charging transformer 4 only retains transformer body and lead-out wire, most using shelling structure
The occupancy of the inner space of sealing shell 1 is reduced in big degree.
Example provided by the invention is 1200kV/120kJ impulse voltage generator, if occurring according to conventional impact voltage
The design of device, now the model of every grade of capacitor is the voltage and capacitance phase of 300kV/0.667 μ every grade of capacitor of F
Deng, the volume of each capacitor and equal sized.In the design of stagewise compact impulse voltage generator, each capacitor
Voltage class it is identical, and capacitance is successively decreased step by step.The present invention in practice, the first front pulse capacitor 7.1 and the second front end
The capacitance of impulse capacitor 7.2 is 1.25 μ F, the first backend pulse capacitor 9.1 and the second backend pulse capacitor 9.2
Capacitance be 0.455 μ F.Now, low capacity impulse capacitor (the first backend pulse capacitor 9.1 and the second backend pulse electricity
Container 9.2) volume be Large Copacity impulse capacitor (the first front pulse capacitor 7.1 and the second front pulse capacitor
7.2) half or so, it is 2/3 or so of traditional 300kV/0.667 μ F capacitor volumes.
In above-mentioned technical proposal, the capacitance of each impulse capacitor is according to different capacitance capacitors and sealing shell 1
Between insulation distance and condenser voltage grade determine.For SF6 gases, according to the empirical equation E of lightning impulse design voltagedt
=75 (10p)0.75KV/cm, wherein p are air pressure (Mpa).So as to draw sulfur hexafluoride gas of the air pressure for 0.4MPa 1cm's
Lightning impulse voltage is 212.1kV, insulation distance >=6cm needed for 300kV insulation distances >=1.5cm, 1200kV, it is contemplated that its
His uncertain factor influences, and the distance between two neighboring capacitor be 5cm in the present invention, the top of one capacitor of highest and
The distance on the top of sealing shell 1 is 25cm, and the design ensure that the dielectric strength of device under high-voltage impact.
In the above-mentioned technical solutions, ignition ball gap equally uses grading design scheme, wherein small―gap suture multi-ignition ball gap
(the first front end multi-ignition ball gap 8.1 and the second front end multi-ignition ball gap 8.2) uses the common closed more limits of 300kV
Fireball gap, the ball of wide arc gap ignition ball gap (the first rear end multi-ignition ball gap 10.1 and the second rear end multi-ignition ball gap 10.2)
Gap is 1.5~2 times of the sphere gap of small―gap suture multi-ignition ball gap, the quantity of tungsten-copper alloy rods inside fireball gap is reduced 1
~2 times, the size of ignition ball gap will reduce more than 1 times.In impulse voltage generator, when ignition discharge, with series
Increase, the voltage that ignition ball gap both ends are born will be in multiple increase, it is thus ensured that the normal disruptive discharge of ignition ball gap.
In the above-mentioned technical solutions, capacitor is designed using high density energy storage technology, improves capacitor unit energy storage
Amount, from the volume and weight of capacitor in itself is reduced at all, so as to reduce the overall volume of experimental rig；Use side simultaneously
Shape structure, both ends outlet, maximum magnitude utilize the space in sealing shell 1, so as to reduce the thickness of capacitor, further drop
The length of low surge voltage generating means；Described ignition ball gap uses closed gas insulation system, each ignition pill before installation
Gap inflation in parallel, ensures that the air pressure in each ignition ball gap is identical, and each igniter is provided with Triggering Control System of lighting a fire,
To ensure the uniformity and synchronism of ball gap ignition discharge；
In above-mentioned technical proposal, supporting insulator 14 is installed in the bottom of sealing shell 1, and can according to voltage class and
The difference of insulation distance uses the insulator of different insulative grade, is such as used for the supports insulative for supporting charging capacitor and high voltage silicon rectifier stack
Son can use common insulator；For supporting the second backend pulse capacitor 9.2 and the second rear end multi-ignition ball gap 10.2
Supporting insulator 14 made using the insulating materials of polytetrafluoroethylene (PTFE) material, the root such as its cluster parachute number, umbrella spacing, full skirt thickness
Factually the insulating requirements on border determine.
In above-mentioned technical proposal, the outside of sealing shell 1 is provided with metallic support 17, support, transport for experimental rig etc..
Stagewise compact impulse voltage generator disclosed by the invention employs the design of hierarchy, makes shell
The insulation distance installation stepped distribution of voltage class between component, is effectively utilized sealing shell inner space, realizes
The limit compact design of impulse voltage generator；And high insulating property gas is employed as major insulation medium, reduce pair
Component and insulating materials climb electric and each interelectrode insulation distance along face；Moreover, supporting insulator is pacified in this example
Mounted in sealing shell bottom surface, and component carries out both-end support using nonhygroscopic supporting insulator, not only avoids first device
The problem of difficult is vacantly lifted in part installation process, also improves the shock resistance of experimental rig.
The content that this specification is not described in detail belongs to prior art known to professional and technical personnel in the field.
Claims (10)
- A kind of 1. capacitance grading formula compact impulse voltage generator, it is characterised in that：It includes sealing shell (1), arc covers Plate (2), disc insulator (3) and lead-out wire (15), and charging transformer (4), the charging electricity being arranged in sealing shell (1) Hold (5), the first high voltage silicon rectifier stack (6.1), the second high voltage silicon rectifier stack (6.2), the first front pulse capacitor (7.1), the second front end arteries and veins Rush capacitor (7.2), the first front end multi-ignition ball gap (8.1), the second front end multi-ignition ball gap (8.2), the first rear end arteries and veins Rush capacitor (9.1), the second backend pulse capacitor (9.2), the first rear end multi-ignition ball gap (10.1), the second rear end multipole Ignition ball gap (10.2), the first wave front resistance (11.1), the second wave front resistance (11.2), the 3rd wave front resistance (11.3), the 4th Wave front resistance (11.4), the first wave terminal resistance (12.1), the second wave terminal resistance (12.2), the 3rd wave terminal resistance (12.3), the 4th Wave terminal resistance (12.4), the first charging resistor (13.1), the second charging resistor (13.2), the 3rd charging resistor (13.3) and the 4th Charging resistor (13.4)；Wherein, the sealing shell (1) is provided with air-filled pore (16), one end sealing installation curved cover plate of sealing shell (1) (2), the other end sealing installation disc insulator (3) of sealing shell (1), the disc insulator (3) are provided with cable hole (3.1), sealing shell (1) is grounded, and the curved cover plate (2) is provided with wiring terminal box (19)；The charging transformer (4) is arranged on one end of sealing shell (1), and the secondary one end of charging transformer (4) passes through charging Electric capacity (5) connects the positive pole of the first high voltage silicon rectifier stack (6.1), and primary access wiring terminal box (19) of charging transformer (4) connects Line end, the negative pole of the first high voltage silicon rectifier stack (6.1) connect one end of the first charging resistor (13.1), the first charging resistor (13.1) The other end connects one end of the second charging resistor (13.2), and the other end of the second charging resistor (13.2) connects the 3rd charging resistor (13.3) one end, the other end of the 3rd charging resistor (13.3) connect one end of the 4th charging resistor (13.4), the 4th charging The other end of resistance (13.4) connects one end of the second rear end multi-ignition ball gap (10.2), secondary another of charging transformer (4) One end connects one end of the first wave front resistance (11.1), and the other end of the first wave front resistance (11.1) connects the first wave terminal resistance (12.1) one end, the other end of the first wave terminal resistance (12.1) connect one end of the second wave front resistance (11.2), the second wave head The other end of resistance (11.2) connects one end of the second wave terminal resistance (12.2), the other end connection of the second wave terminal resistance (12.2) One end of 3rd wave front resistance (11.3), the other end of the 3rd wave front resistance (11.3) connect the one of the 3rd wave terminal resistance (12.3) End, the other end of the 3rd wave terminal resistance (12.3) connect one end of the 4th wave front resistance (11.4), the 4th wave front resistance (11.4) The other end connect one end of the 4th wave terminal resistance (12.4), it is more that the other end of the 4th wave terminal resistance (12.4) connects the second rear end The other end of limit fireball gap (10.2), the other end of the second rear end multi-ignition ball gap (10.2) are also associated with lead-out wire (15), lead-out wire (15) stretches out sealing shell (1) outside through the cable hole (3.1) on disc insulator (3)；The negative pole of second high voltage silicon rectifier stack (6.2) connects the positive pole of the first high voltage silicon rectifier stack (6.1), the second high voltage silicon rectifier stack (6.2) Plus earth, be connected first between the other end and the other end of the first wave front resistance (11.1) of the first charging resistor (13.1) Front pulse capacitor (7.1), the other end of the first charging resistor (13.1) and the other end of the first wave terminal resistance (12.1) it Between connect both ends corresponding to the first front end multi-ignition ball gap (8.1), the other end and the second ripple of the second charging resistor (13.2) Connect the second front pulse capacitor (7.2) between the other end of head resistance (11.2), the second charging resistor (13.2) it is another End both ends corresponding with connecting the second front end multi-ignition ball gap (8.2) between the other end of the second wave terminal resistance (12.2), the The first backend pulse electric capacity is connected between the other end of three charging resistors (13.3) and the other end of the 3rd wave front resistance (11.3) Device (9.1), after being connected first between the other end and the other end of the 3rd wave terminal resistance (12.3) of the 3rd charging resistor (13.3) Hold both ends corresponding to multi-ignition ball gap (10.1), the other end and the 4th wave front resistance (11.4) of the 4th charging resistor (13.4) The other end between connect the second backend pulse capacitor (9.2).
- 2. capacitance grading formula compact impulse voltage generator according to claim 1, it is characterised in that：It also includes more Individual supporting insulator (14), the charging capacitor (5), the second high voltage silicon rectifier stack (6.2), the first front pulse capacitor (7.1), Two front pulse capacitors (7.2), the first front end multi-ignition ball gap (8.1), the second front end multi-ignition ball gap (8.2), One backend pulse capacitor (9.1), the second backend pulse capacitor (9.2), the first rear end multi-ignition ball gap (10.1) and Two rear end multi-ignition ball gaps (10.2) pass through the inner bottom of corresponding supporting insulator (14) fixed connection and sealing shell (1) Face.
- 3. capacitance grading formula compact impulse voltage generator according to claim 1 or 2, it is characterised in that：Described Capacitance between one front pulse capacitor (7.1) and the second front pulse capacitor (7.2) is equal, first rear end Capacitance between impulse capacitor (9.1) and the second backend pulse capacitor (9.2) is equal, the first front pulse electricity The capacitance of container (7.1) is 2~3 times of the capacitance of the first backend pulse capacitor (9.1).
- 4. capacitance grading formula compact impulse voltage generator according to claim 1 or 2, it is characterised in that：Described Sphere gap between one front end multi-ignition ball gap (8.1) and the second front end multi-ignition ball gap (8.2) is equal, after described first Hold multi-ignition ball gap (10.1) equal with the sphere gap between the second rear end multi-ignition ball gap (10.2), second rear end The sphere gap of multi-ignition ball gap (10.2) is 1.5~2 times of the sphere gap of the first front end multi-ignition ball gap (8.1).
- 5. capacitance grading formula compact impulse voltage generator according to claim 3, it is characterised in that：Before described first Hold impulse capacitor (7.1), the second front pulse capacitor (7.2), the first backend pulse capacitor (9.1) and the second rear end arteries and veins Rush the voltage class all same of capacitor (9.2).
- 6. capacitance grading formula compact impulse voltage generator according to claim 1 or 2, it is characterised in that：Described One high voltage silicon rectifier stack (6.1) longitudinal horizontal arranges that second high voltage silicon rectifier stack (6.2) is vertically arranged, the charging transformer (4), Charging capacitor (5), the second high voltage silicon rectifier stack (6.2), the first front pulse capacitor (7.1), the first front end multi-ignition ball gap (8.1), the second front pulse capacitor (7.2), the second front end multi-ignition ball gap (8.2), the first backend pulse capacitor (9.1), the first rear end multi-ignition ball gap (10.1), the second backend pulse capacitor (9.2), the second rear end multi-ignition ball gap (10.2) it is sequentially arranged between one end and the other end of sealing shell (1).
- 7. capacitance grading formula compact impulse voltage generator according to claim 1 or 2, it is characterised in that：It is described to fill Before electric capacity (5), the first high voltage silicon rectifier stack (6.1), the second high voltage silicon rectifier stack (6.2), the first front pulse capacitor (7.1), second After holding impulse capacitor (7.2), the first front end multi-ignition ball gap (8.1), the second front end multi-ignition ball gap (8.2), first Hold impulse capacitor (9.1), the second backend pulse capacitor (9.2), the first rear end multi-ignition ball gap (10.1), the second rear end Bottom surface, top surface and the side of multi-ignition ball gap (10.2) and sealing shell (1) are respectively provided with gap.
- 8. capacitance grading formula compact impulse voltage generator according to claim 1 or 2, it is characterised in that：Described One wave front resistance (11.1), the second wave front resistance (11.2), the 3rd wave front resistance (11.3), the 4th wave front resistance (11.4), One wave terminal resistance (12.1), the second wave terminal resistance (12.2), the 3rd wave terminal resistance (12.3), the 4th wave terminal resistance (12.4), One charging resistor (13.1), the second charging resistor (13.2), the 3rd charging resistor (13.3), the 4th charging resistor (13.4) with it is close Bottom surface, top surface and the side of envelope shell (1) are respectively provided with gap.
- 9. capacitance grading formula compact impulse voltage generator according to claim 1 or 2, it is characterised in that：It is described close It is cylindric sealing shell to seal shell (1), and the curved cover plate (2) is circular arc cover plate.
- 10. capacitance grading formula compact impulse voltage generator according to claim 1 or 2, it is characterised in that：Described One wave front resistance (11.1), the second wave front resistance (11.2), the 3rd wave front resistance (11.3), the 4th wave front resistance (11.4), One wave terminal resistance (12.1), the second wave terminal resistance (12.2), the 3rd wave terminal resistance (12.3) and the 4th wave terminal resistance (12.4) are equal For cylindric noninductive resistance, first charging resistor (13.1), the second charging resistor (13.2), the 3rd charging resistor (13.3) It is rectangular-shaped resistance with the 4th charging resistor (13.4).
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| CN110275099B (en) * | 2019-07-24 | 2024-03-19 | 中节能启源雷宇（江苏）电气科技有限公司 | Horizontal impulse voltage generator |
| CN113740684B (en) * | 2021-08-19 | 2023-05-16 | 国网四川省电力公司电力科学研究院 | Adjustable capacitance matrix device, standard impact current test device and test method |
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Effective date of registration: 20171214 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: State Grid Shanghai Municipal Electric Power Company Patentee after: State Grid Corporation of China Co-patentee after: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: Wuhan Nari Limited Liability Company of State Grid Electric Power Research Institute Patentee before: State Grid Corporation of China |